“I believe everyone should help out and pitch in, especially when it comes to the community and kids,” Raymundo said.

Raymundo was one of many Twilight fans that donated blood in “The Cullen Family Blood Drive,” with signups inside the theater’s lobby. Members of the Cullen family, a pack of vampires that only drink animal blood, are leading characters in the movie.

Jacqueline Andrade, a blood donor recruiter at Children’s Hospital Los Angeles, said the drive has helped her group reach younger donors. Young people, ages 17 to 24, make up just 20 percent of the hospital’s blood donations.

“On just a regular day, we rarely get a young donor base, so it’s really great to have this here, because we’re seeing a lot of young faces and we’re getting lots of phone calls about it,” Andrade said.

The blood drive was organized by entertainment company AEG, Regal Cinemas and Children’s Hospital Los Angeles. Blood donors received a Twilight wristband, a Twilight movie poster and a coupon for popcorn and a drink.